Valve



April 22, 1958 J. E. ALLEN ET AL v 2,831,506

' VALVE Filed May 1, 1956 5 Sheets-Sheet l Elli-31 i- //v VENTORS. JOHN E. ALLENand CARL R KLOOZ,

BYI

their Attorney.

April 22, 1958 J. E. ALLEN ET AL 2,831,506

VALVE Filed May 1, 1956 3 Sheets-Sheet 3 lNVEN TORS. JOHN E ALLEN and CARL R. KL 002,

their Attorney.

United States Patent VALVE John E. Allen, South Euclid, and Carl R. Klooz, East Cleveland, Ohio Application May 1, 1956, Serial No. 581,929

6 Claims. (Cl. 138-45) This invention relates to a valve and more particularly to a valve which may be inserted in a steel tube or pipe such as the tuyere stock leading to the tuyere of a blast furnace. in many instances .it is necessary to install a valve in a pipe which has already been connected and i this is diflicult to do. The air .passing through the tuyere stock has abrasive particles therein which cause damage to the valve and requires the replacement of at least some of the parts thereof.

It is therefore an object of our invention to provide a valve which may be readily installed in an existing pipe line.

Another object is to provide a valve which is simple and rugged in construction.

Still another obect is to provide such a valve which 2,831,506 Cg Patented Apr. 22, 1958 .2 a strap 26 is welded around the tube 2. The strap 26 is shown cut out at 26a to avoid a flange on the tuyere stock 2, but in other instances no such cut out is required. The design of the slot 4 is such as to eliminate convergence of weldment stresses, thus reducing weldment distortion, and the strap 26 equalizes welding stresses and warpage. This eliminates the need of stress annealing the weldment. Thus the valve can be installed without shut down of the furnace. The gate 14 has a threaded stem 28, a main portion 30 shaped to contact the corners of opening 12 and a rectangular end portion 32.. Because of the limited contact between the main portion 30 and opening 12 there is little sliding friction therebetween. v

A cast steel valve retainer 34 seats on the outer surface of valve body 6 and has generally radial flanges 36 at its ends which are received between the flanges 20. A hole 38 is provided in each flange 36 in alignment with holes 22 and 24 in flanges 20. A tapered lock pin 40 passes through each set of aligned holes 22, 24 and 38 to connect the retainer 34 to the valve body 6. The

retainer 34 has a central radial opening 42 therethrough with a peripheral flange 44 intermediate the length thereof so as to provide a recess 46 for receiving flange 48 of operating nut 50. A washer 52 may be provided be tween flanges 44 and 48. The nut 50 is internally threaded to receive the stem 28 and externally threaded v at 54. to receivean internally threaded indicator ring 56. The ring 56has radial ears 58 thereon which pass through slots 60 in an indicator sleeve 62. The indicator outside of nut 50 and turning it in the proper direction.

Figure 4 is a sectional view taken on the line IV-IV of Figure 2;

Figure 5 is a view showing an opening in the tuyere stock for receiving the valve; and

Figure 6 is a view taken on the line VI-VI of Figure 3.

Referring more particularly to the drawings the reference numeral 2 indicates a steel tube which is shown as a tuyere stock leading to the tuyere of a blast furnace. In order to insert a valve into thetube 2 a slot 4 shaped as shown in Figure 5 is cut in the pipe or tube 2. The slot 4 extends around less than half of the periphery of the tube 2 and has a narrow portion 40 at each end. A cast steel valve body 6 is provided with a guide portion 8 which fits in the slot 4. I A reinforcing rib 10 is provided at each end of the guide portion 8, the ribs 10 being received in the narrow portions 4a of the slot 4. A radial opening 12 is provided in the the inner and outer threads onnut are pitched pro,

portional to each other. Thus, the position ofthe valve gate 14 is known at all times. The stops 16 prevent the valve from closing entirely so that a certain amount of air will be delivered to the tuyeres as long as the blowers are in operation. 1 v

In order to inspect or replace parts it is only necessary to knock out the two tapered pins 40 and remove all the parts with the exception of body 6. An entire new assembly could be ready for assembly in place of the removed parts or the parts may be disassembled, cleaned and/ or replaced.

While one embodiment of our. invention has been shown and described it will be apparent that other adaptations and modifications may be made without departing from the scope of the following claims.

We'claim: I

1. The combination of a 'valve and a pipe having a slot partially around the periphery thereof comprising guide portion 8 to provide the guiding surfaces for valve gate or paddle 14. A stop 16 is provided at the inner 24 are provided in each pair of flanges 20. After the valve body 6 is welded to tube 2 a steel reinforcing a valve body having a guide portion extending through said slot into said pipe, said guide portion having a radial opening therethrough providing a guide, said valve body having a tubular base surrounding said pipe around said slot, a paddle slidably mounted in said radial opening, said paddle having a threaded stem on its outer end,

a valve retainer mounted on the outer surface of said 9 sleeve surrounding said indicator ring and attached to said retainer, said indicator sleeve having an elongated slot therein, and an ear on said indicator ring extending into said elongated slot.

3. The combination of a valve and a pipe having a slot partially around the periphery thereof comprising a valve body having a guide portion extending through said slot into said pipe, said guide portion having a radial opening therethrough providing a guide, said valve body having a tubular base surrounding said pipe around said slot, a paddle slidably mounted in said radial opening,said paddle having a threaded stem on its outer end, a valve retainer mounted on the outer surface of said valve'body, means detachably securing said valve retainer to said valve body, a nut threaded'on the stem of said paddle, said valve retainer havin an opening therethrough in'alignment with the opening in said guide portion, a peripheral flange in said opening spaced from said valve-body to provide a recess, and a peripheral flange on said nut received in said recess.

4. The combination according to claim 3 including threads on the outer surface of said nut, an indicator ring threaded on said last named threads, an indicator sleeve surrounding said indicator ring attached to said retainer, said indicator sleeve having an elongated slot-therein, and anear on said indicator ring extending into said elongated slot.

5. The combination ofa valve and a pipe having a slot partially around the periphery thereof comprising a valve body having a guide portion extending through said slot into said pipe, said guide portion having a radial opening therethrough providing a guide, said valve body having a tubular base surrounding-said pipe aroundof flanges having aligned holes therein, a tapered locking pin passing through said aligned holes, a nut threaded on the stem of said paddle, said valve retainer having an opening therethrough in alignment with the opening in said guide portion, and means preventing axial movement of said nut.

6. The combination ofa valve and a pipe having a slot partially around the periphery thereof comprising a valve body having a guide portion extending through "a said slot into said pipe, said guide portion having a radial opening therethrough providing a guide, a stop at the inner end of said guide, said valve body having a tubular base surrounding said pipe around said slot, a pair of spaced apart flanges extending outwardly from said base on each side of said guide portion,'a paddle slidahly mounted in said radial opening, said paddle having a threaded stem on its outer end, a valve retainer mounted on the outer surface of said valve body, a flange on each end of said retainer received between said pairs of flanges, each of said flanges and said pairs of flanges having aligned holes therein, a tapered locking pin passing through said aligned holes, a nut threaded on the stem of said paddle,-said valve retainer having an opening therethrough in alignment with the opening in said guide portion, a peripheral flange in said opening spaced from said valve body to provide a recess, a peripheral flange on said nut received in said recess, threads on the outer surface of said nut, an indicator ring threaded on said last named threads, an indicator sleeve surrounding said indicator ring attached to said retainer, said indicator sleeve having an elongated slot therein, and an slot.

Wells Nov. 1, 1932 Brandriff Feb. 21, 1933 ear on said indicator ring extending into said elongated Shepherd Mar. 26, 1889 

